I think I have bricked my phone. My display is blank and bootloader screen doesn't show anything.

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I can access fastboot mode though, I tried flashing firmware from tiny fastboot script and RSA, it didn't work.I asked AI, it said it could be the persist.img file which is missing.My model is Moto g52 XT2221-1, INDIA varient.Can someone with root post the persist img file or help me with my device.